DS

David J. Spyker

JW Jwi: 1 patents #1 of 7Top 15%
📍 Holland, MI: #37 of 114 inventorsTop 35%
🗺 Michigan: #1,023 of 4,492 inventorsTop 25%
Overall (1997): #161,280 of 185,788Top 90%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5635061 Plate shifter mechanism Leonid B. Gelfand, Wesley G. Koops 1997-06-03